A police officer shot and killed a man who lunged at him with a knife after a foot chase Thursday, witnesses and police said. Officers had responded to a call at 12:15 p.m. about a man with a knife near an apartment in the 9800 block of Central Avenue, Lt. John Woods said. In the next block, the officers saw a man, later identified as Hao Dinh Vu, 34, of Garden Grove, waving the weapon, but as they approached, he scaled a fence, Woods said.

A foiled narcotics deal in Fullerton on Tuesday spurred a pursuit that crossed into Los Angeles County and ended when the suspects' car collided with another vehicle in Cerritos, police said. Officers approached a man and woman they believed were conducting a prearranged methamphetamine sale just before 5 p.m. at Euclid Street and Orangethorpe Avenue, Fullerton Police Lt. Danny Becerra said.

Three Placentia police officers suffered minor injuries when an alleged drunk driver fought off attempts to arrest him, officials said Sunday. Several officers had been summoned about 3:30 a.m. Saturday to a report of a reckless driver in the 1300 block of East Orangethorpe Avenue in Placentia, a police spokesman said. As the officers completed the traffic stop, the driver allegedly reversed his car and rammed a police car before leading police on a pursuit, authorities said.

California Highway Patrol officers in cars and two law enforcement helicopters chased a speeding motorcyclist over the San Diego and Santa Ana freeways and then through residential streets of Lake Forest and Irvine early Friday morning before arresting a Marine, authorities said. Marco Antonio Romero, based at El Toro Marine Corps Air Station, was booked on suspicion of evading arrest and reckless driving, CHP Officer Scott Smith said. The chased started about 12:40 a.m.

A North Tustin man who allegedly threatened his estranged wife with a knife led authorities on a chase at speeds exceeding 100 mph until his car went over a spike strip and crashed, authorities said Tuesday. John Allen Paquette, 36, was treated for cuts and scrapes to his leg sustained in the car crash and got stitches for dog bites before he was booked into the Orange County Jail.

Two men were injured Wednesday after a California Highway Patrol officer opened fire on a sport utility vehicle whose driver apparently tried to back over the officer during a traffic stop in Long Beach, authorities said. The incident began at 4:53 p.m. when the patrolman, identified as Officer Lance Wells, 35, stopped the truck for driving in excess of 90 mph on the San Diego Freeway, Sgt. Ernest Garcia said.

Two Santa Ana teens were seriously injured Friday night when their pickup crashed while they were fleeing police, authorities said. The incident began when Garden Grove police responded to a report of a fight at the Fire Station Motel on Harbor Boulevard about 9 p.m., Police Sgt. Paul McInerny said. The officers followed a white Toyota pickup heading south on Harbor from Palm Street, McInerny said.

Police arrested a Long Beach man after he allegedly rammed into two police cruisers after a slow-speed pursuit that began Thursday in his hometown, officials said. Gary William Wilson, 28, was booked into Huntington Beach City Jail on suspicion of evading police and assault with a deadly weapon on a peace officer, Huntington Beach Police Lt. Tom Arnold said.

A Costa Mesa man who allegedly led officers on a 120-mph chase before crashing into a car and killing two newspaper deliverymen is a computer technician with the U.S. Coast Guard, authorities said Monday. Petty Officer Michael Edward Nelson, 31, is on active duty and was in good standing, with no criminal record, a Coast Guard spokeswoman said. He could face military court proceedings. Nelson, based in San Pedro, was heading home about 1:35 a.m.

A man trying to escape police flipped his pickup truck after a short chase Wednesday, police said. About 7:45 a.m., a caller reported two suspicious people asleep in a pickup in the 700 block of South Yana Drive, Sgt. Joe Vargas said. The truck was registered to Mark Edward Findlay, 22, of Orange, who was wanted on a felony parole-violation warrant, he said. When officers knocked on the windows, the driver started the truck and drove off, nearly hitting one of the officers, Vargas said.